30秒学会 Dart 片段 – groupBy
Groups the elements of a list based on the given function. Use Iterable.map() to map each element to...
Groups the elements of a list based on the given function. Use Iterable.map() to map each element to...
Randomizes the order of the values of an IList, updating the original IList object. Use the Fisher-Y...
The :fullscreen CSS pseudo-element represents an element that’s displayed when the browser is ...
Initializes an array containing the numbers in the specified range where start and end are inclusive...
Check if all elements in a list are equal. Use Iterable.every() to check if all the elements of the ...
Reverses a string. Use the spread operator (…) and Array.prototype.reverse() to reverse the order ...
Casts the provided value as a list if it’s not one. Use isinstance() to check if the given val...
Returns the index of the last element for which the provided function returns a truthy value. Use ar...
Merges two or more dictionaries. Create a new dict() and loop over dicts, using dictionary.update() ...
Returns the head of a list. Check if arr is truthy and has a length property, use arr[0] if possible...